Radio-transmitting sensor for a vehicle wheel, comprising a dual-mode antenna circuit
US11731468B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 10, 2019 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Aug 18, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0488
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A radio-transmitting sensor for a vehicle wheel, suitable for measuring at least one physical quantity and for transmitting a radio signal representative of this measured physical quantity. The sensor includes a measurement and transmission circuit, an antenna impedance matching circuit, and an antenna circuit. The sensor includes a sensitivity switch controlled by the measurement and transmission circuit and suitable for switching the antenna circuit according to two modes: a dynamic mode in which the antenna circuit is configured as a magnetic antenna, and in which the sensor transmits said radio signal representative of the measured physical quantity, this signal including transmitted data frames; and a static mode in which the antenna circuit is configured as an electric antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.